深海拖网渔船海试动力响应研究

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2023-03-01 DOI:10.2478/pomr-2023-0003
Qing-feng Xu, Yonghe Xie, Haofeng Cai, Xiwu Gong, Detang Li, W. Wang, Panpan Jia
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引用次数: 0

摘要

渔船自动化程度的提高,在提高拖网作业效率的同时,也直接影响到渔船的捕捞能力和成本。在各种影响因素中,可以通过改变经纱张力和经纱长度来自动平衡经纱控制的收放。结合这两个参数,自主设计开发了渔船关键设备翘曲测功机和仪表反控软件。提高了经纱张力和长度测量的精度。设计的设备在不同工况下进行了海试,并导出了试验数据记录。接下来,通过复傅立叶变换、一阶低通滤波和傅立叶反变换绘制所需参数的滤波时域图。对不同参数的数据处理结果进行了对比分析,确定了参数的变化趋势,验证了其平衡控制的效果。结果表明,采用经纱张力和经纱长度相结合的自动平衡控制系统可以有效地控制远洋双层拖网渔船的捕捞作业。此外,一阶低通滤波可用于过滤复杂的经纱张力数据。本研究还确定了松开控制时经纱张力与经纱长度、航速等实验参数的关系。经张力和经长平衡控制后,网口面积分别增大了30.7%和36.5%,渔船的捕捞效率得到了显著提高。
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Study on the Dynamic Response of Deep-Sea Trawlers in Sea Trials
Abstract The increasing use of automation in fishing vessels has improved trawling efficiency while directly affecting the fishing capacity and cost of fishing vessels. Among the various influencing factors, warp tension and warp length can be varied to automatically balance the retraction and release of warp control. We combined the two parameters and independently designed and developed the key equipment for fishing vessels—the warp dynamometer and meter counter—and control software. The accuracy of the warp tension and length measurements was improved. The designed equipment was applied to sea trials under different working conditions, and the test data records were exported. Next, filtered time-domain graphs of the required parameters were plotted through complex Fourier transform, first-order low-pass filtering, and inverse Fourier transform. The results of data processing using various parameters were compared and analysed to determine the variation trends of the parameters and verify the effects of their balance control. The results indicated that using an automatic balance control system that combines warp tension and warp length can be effective for the fishing operation of offshore double-deck trawlers. In addition, first-order low-pass filtering can be used to filter complex warp tension data. This study also determined the relationship between warp tension and experimental parameters such as warp length and ship speed during the release of control. After the balance control of warp tension and warp length, the net mouth area increased by 30.7% and 36.5%, respectively, and the fishing efficiency of the vessel improved considerably.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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